Premium low voltage flameproof variable frequency and high-efficiency induction motors customized for hazardous zones.
Indonesia, the largest economy in Southeast Asia, is currently undergoing a massive transformation of its heavy industrial infrastructure. With substantial national output centered in hydrocarbon extraction (oil & gas), coal mining, chemical manufacturing, and processing plants, the demand for explosion-proof machinery has reached unprecedented heights. In hazardous locations where volatile gases, flammable vapors, or combustible dusts are present (classified as Zone 1, Zone 2, Zone 21, and Zone 22), premium quality AC low-voltage explosion-proof motors are safety-critical assets.
Indonesia's regulatory body, the Ministry of Energy and Mineral Resources (ESDM), along with national standards like SNI (Standar Nasional Indonesia), mandate strict compliance rules for explosive environment operations. The primary offshore and onshore oil exploration basins located in Sumatra (Riau, South Sumatra) and East Kalimantan require highly resilient flameproof drive systems. Meanwhile, the massive petrochemical corridors in Cilegon (Banten) require motors built to resist corrosive maritime atmospheres containing salt spray alongside volatile organic compounds.
Sourcing standard industrial motors for these regions is an operational hazard. Operating under high humidity, high ambient temperatures, and volatile environments demands a system certified under global frameworks such as ATEX and IECEx. Low-voltage AC explosion-proof motors—specifically designed to run on common industrial voltage bands (such as 380V, 400V, 415V, or 660V at 50Hz/60Hz)—provide the necessary physical isolation, thermal tolerances, and sparkless mechanisms to ensure zero-ignition capability during continuous service.
For engineering, procurement, and construction (EPC) companies operating in Indonesia, sourcing explosion-proof electrical machinery presents distinct bottlenecks:
Shaanxi Nanfang Motor Technology Co., Ltd. is the authorized global distributor of Wolong. Wolong Electric Drive Group Co., Ltd. was founded in 1984 and successfully listed in 2002 (code SH600580). Over decades of technological innovation and market growth, Wolong has established 3 global manufacturing bases, 39 advanced factories, and 3 R&D centers worldwide. The company is committed to a global brand strategy, leading in R&D, quality manufacturing, and distribution of robust driving and motor control systems.
Wolong possesses premium domestic and international century-old brands, including Nanyang Explosion, Brook Crompton, Morley, Laurence Scott, Schorch, and ATB. The company has a strong footprint in global oil, gas, chemical, coal mining, and power generation markets.
Partner With UsProviding the optimal balance of speed, strict quality control, and cost efficiency for international procurement.
Wolong operates dedicated R&D centers in China, Europe, and Japan. Utilizing high-strength cast iron, fully digital simulation platforms, and dynamic multi-physics analysis, Wolong designs explosion-proof motors that exceed regulatory requirements.
Integrating industry powerhouses like Nanyang Explosion (CNE), GE (commercial/industrial motors division since 2018), ATB, and Brook Crompton, providing one-stop access to both NEMA and IEC product portfolios.
With structured warehousing, streamlined export handling, and localized distribution networks, Shaanxi Nanfang Motor bridges the gap between China's Factory 4.0 production capacity and the immediate needs of Indonesian industrial sites.
Engineered for high mechanical redundancy, maximum thermal isolation, and zero-spark safety in volatile zones.
The rotor features a robust squirrel cage design, utilizing cast aluminum produced via centrifugal aluminum casting or die-casting techniques. For larger capacity motors, copper bar rotors are employed, benefiting from dependable bar securing and advanced end-ring welding procedures. The structural integrity guarantees outstanding torque properties and high-speed reliability in tough environments.
The coils are crafted from polyester film and reinforced with glass cloth, utilizing either low-powder mica tape with high mica content or medium-powdered mica tape. Following the Vacuum Pressure Impregnation (VPI) process, the stator assembly displays exceptional electrical performance, mechanical strength, moisture resistance, and thermal stability in humid tropical regions.
The motor frame utilizes structural and fluid multi-physics field simulations to maximize heat dissipation. Cast from high-strength cast iron or steel, the frame boasts structural redundancy, low vibration propagation, and high natural frequency isolation margins, ensuring low motor temperature rise during continuous operation.
Comprising a fan cover body, an air guide cylinder, a protective window, and a silencer plate, this system optimizes airflow while minimizing acoustics. Sound-absorbing materials lower motor noise emissions, and the IP22-rated guard protects operators and prevents physical contact with the fan blades.
Meeting international quality barriers to ensure swift custom clearances and compliance with local ESDM rules.
Nemko / ATEX
CSA Standard
CE Mark
CC Standard
SABS Standard
TESTSAFE
To enter the highly regulated Indonesian industrial sectors, electric motors must meet local and global standards. Wolong has obtained the majority of product certifications to facilitate smooth international procurement:
Where Wolong's explosion-proof low-voltage motors are deployed to safeguard lives and assets.
In refining centers like Balikpapan and Cilacap, where fractional distillation generates highly flammable Class I, Group D gases, our WEBP3 and YBBP variable frequency motors drive pumps, compressors, and ventilators safely under continuous duty.
Underground and open-cast coal mines generate coal dust, which is highly explosive when suspended. Our YBK3 coal mine flameproof motors and YFB3 dust explosion-proof series operate in these hazardous environments.
Aggressive maritime environments combined with chemical vapors require high corrosion protection. Wolong's motors feature specialized marine coatings, anti-condensation heaters, and Class H insulation systems.
Industrial processing generates combustible methane gas. Wolong's low-voltage explosion-proof motors run drainage and aeration pumps in municipal and private water treatment systems across major Indonesian cities.
Expert answers to common engineering questions regarding the application, certification, and operation of Ex-proof motors.
Authorized Wolong low-voltage systems engineered for performance in petrochemical, mining, and industrial sectors.
NANFANG
